My experience with radiateds is similar to Adams. I thoroughly enjoyed working with the species, even though I found them to be the most irracible snakes I have ever kept (mine were CB too).
I also noticed that from birth to around 6 months of age mine seemed to act more like normal skittish ratsnakes much more interested in getting away than biting. With age though their attitudes changed quickly and deteriorated with each year.
I will say though, that I do believe regular handling will help curb this tendancy. I don't normally handle my snakes just to be doing it, but I would strongly suggest you do so regularly with your radiated, now, before his attitude starts going downhill.
All the asian ratsnakes I have kept were flightly to an extent, and in constant motion when being held, and I doubt even handling will prevent that, but I do believe it will greatly reduce the number of bites received while doing it.
I too noted that humidity is crucial with this species during shedding. Mine were very prone to bad sheds. Use two hide boxes if possible, one of them being humidified and that will help alot.
Despite their being extremely aggressive, I really enjoyed keeping them. Last spring, during a round of collection reduction, I sold my last female and I have regretted it since.
I don't put forth any illusions toward serpentine intelligence, but I will say that this species does show a higher level of intelligence than many other colubrids.
They are very alert and aware of their surroundings. I've caught mine watching me when I was 20 feet away, and responding to even small movements.
They are a very hardy snake, and easy to keep. At the same time they, as other asians, are very different from the colubrids more commonly kept, and this makes them a very interesting species to work with.
I decided not long after I sold my last one that I would definately have to keep another in the future, and I won't be handling it much either, I like their attitudes the way they are.